| 单词 | double-base powder |
| 释义 | > as lemmasdouble-base powder double-base powder n. ΚΠ 1951 W. Ley Rockets, Missiles & Space Trav. vii. 172 The propelling charge in that rocket was a double-base powder containing..nitrocellulose..nitroglycerin..and diphenylamine added as a stabilizer. < as lemmas |
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